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CN-224222233-U - Automatic dredging and knocking device for concrete pump truck elbow

CN224222233UCN 224222233 UCN224222233 UCN 224222233UCN-224222233-U

Abstract

The utility model relates to the field of dredging of concrete pump truck elbows, and discloses an automatic dredging and knocking device for a concrete pump truck elbows, which is arranged outside a conveying pipe on a lifting arm of a pump truck body and is close to a bending part of the conveying pipe. According to the utility model, through the cooperation of the dredging mechanism and the conveying pipe, in the rotating process of the rotating cylinder, the supporting piece can slide up and down along the cambered surface of the supporting block to drive the roller to regularly knock the inner wall of the conveying pipe, so that the concrete blocked in the bent pipe can be efficiently vibrated and cleaned, the dredging effect is good, the working efficiency of the concrete pump truck is improved, and the downtime caused by pipeline blockage is reduced.

Inventors

  • ZHANG XIN

Assignees

  • 辽宁中科道路工程有限公司

Dates

Publication Date
20260512
Application Date
20250515

Claims (7)

  1. 1. The automatic dredging and knocking device for the concrete pump truck elbow is characterized by being arranged outside a conveying pipe (3) on a lifting arm (2) of a pump truck body (1) and close to a bending part of the conveying pipe (3), and comprises a transmission assembly and a dredging assembly; The dredging assembly comprises a fixed cylinder (41) fixed outside the conveying pipe (3), a shell (44) is fixed on the outer side of the fixed cylinder (41), a rotating cylinder (42) which is respectively connected with the fixed cylinder (41) and the shell (44) in a rotating mode is arranged between the fixed cylinder (41) and the shell (44), a bearing (43) is arranged between the fixed cylinder (41) and the rotating cylinder (42), a supporting block (45) is fixedly connected to the outer wall of the fixed cylinder (41), a supporting piece (46) is connected to the inner wall of the rotating cylinder (42) in a sliding mode, the supporting piece (46) is elastically connected with the rotating cylinder (42) through a reset spring (47), and a roller (48) is connected to the outer side of the supporting piece (46) in a rotating mode; The transmission assembly is fixed on the outer wall of the shell (44) and used for rotating the rotating cylinder (42), and the rotating cylinder (42) is arranged below to enable the roller (48) to be matched with the supporting block (45) to intermittently strike the fixed cylinder (41).
  2. 2. The automatic dredging and knocking device for the concrete pump truck elbow pipe, as claimed in claim 1, characterized in that the transmission assembly comprises a driving motor (51) fixed on the outer side of the shell (44), a gear (52) is fixedly connected on the outer side of an output shaft of the driving motor (51) and close to the inner side of the shell (44), a gear ring (53) for driving the rotating cylinder (42) to rotate is fixedly connected on the outer side of the rotating cylinder (42), and the gear (52) is meshed with the gear ring (53).
  3. 3. The automatic dredging and knocking device for the concrete pump truck elbow pipe, as set forth in claim 1, is characterized in that the supporting block (45) is arranged in a triangular shape, and an inclined surface on the supporting block (45) is arranged in an arc surface.
  4. 4. The automatic dredging and knocking device for the concrete pump truck elbow according to claim 1, wherein the roller (48) is made of rubber.
  5. 5. The automatic dredging and knocking device for the concrete pump truck elbow pipe, as set forth in claim 1, characterized in that a sealing cover (6) is arranged on the outer side of the outer shell (44), a limiting component is arranged on the outer side of the outer shell (44), the limiting component comprises a limiting ring (71) which is slidably connected to the inner wall of the outer shell (44), the limiting ring (71) is elastically connected with the outer shell (44) through a compression spring (72), one end of the compression spring (72) is fixedly connected to the inner wall of the outer shell (44), and the other end of the compression spring (72) is fixedly connected to the outer side of the limiting ring (71).
  6. 6. The automatic dredging and knocking device for the concrete pump truck elbow pipe, as claimed in claim 5, is characterized in that a limiting block (73) for limiting the rotation of the sealing cover (6) is fixedly connected to one side, close to the sealing cover (6), of the limiting ring (71), a limiting groove (74) for limiting the limiting block (73) is formed in the outer side of the sealing cover (6), and the limiting block (73) slides on the inner wall of the limiting groove (74).
  7. 7. The automatic dredging and knocking device for the concrete pump truck elbow is characterized in that the outer side of the limiting block (73) is provided with an arc surface.

Description

Automatic dredging and knocking device for concrete pump truck elbow Technical Field The utility model relates to the field of dredging of concrete pump truck elbows, in particular to an automatic dredging and knocking device for a concrete pump truck elbows. Background In modern building construction, the concrete pump truck is used as efficient concrete conveying equipment and widely applied to various engineering construction projects, concrete is accurately conveyed to a specified position through a conveying pipe, and the construction efficiency is greatly improved. The concrete has viscosity, and in the conveying process, the angle change at the bent pipe position causes uneven concrete flow velocity and pressure distribution, so that partial concrete is easy to adhere to and accumulate on the inner wall of the bent pipe, and the accumulated concrete is gradually solidified with the passage of time, so that a pipeline is blocked. At present, to concrete pump truck return bend jam problem, manual mediation is comparatively traditional mode, and constructor need to beat the return bend outer wall with the help of instrument such as hammer, iron stick, shakes the concrete that blocks up and falls, consumes a large amount of manpowers and time, and intensity of labour is big, and the mediation effect relies on constructor's experience and physical power moreover, and inefficiency, simultaneously, manual beating dynamics is difficult to control, and excessive beating can damage the conveyer pipe, shortens its life, provides a concrete pump truck return bend automatic mediation to strike the device for this and solves above-mentioned problem. Disclosure of utility model In order to make up for the defects, the utility model provides an automatic dredging and knocking device for a concrete pump truck elbow, and aims to solve the problems of high labor intensity and low efficiency in the prior art of 'manual dredging of the concrete pump truck elbow blockage'. In order to achieve the aim, the automatic dredging and knocking device for the concrete pump truck elbow pipe comprises a transmission assembly and a dredging assembly, wherein the automatic dredging and knocking device is arranged outside a conveying pipe on a lifting arm of a pump truck body and is close to a bending part of the conveying pipe; The dredging assembly comprises a fixed cylinder fixed outside the conveying pipe, a shell is fixed on the outer side of the fixed cylinder, a rotating cylinder which is respectively connected with the fixed cylinder and the shell in a rotating way is arranged between the fixed cylinder and the shell, and a bearing is arranged between the fixed cylinder and the rotating cylinder; The transmission assembly is fixed on the outer wall of the shell and used for rotating the rotating cylinder, and the rotating cylinder is arranged below the rotating cylinder to enable the roller to be matched with the supporting block and intermittently strike the fixed cylinder. As a further description of the above technical solution: The transmission assembly comprises a driving motor fixed on the outer side of the shell, the driving motor is fixedly connected on the outer side of the shell, a gear is fixedly connected on the outer side of an output shaft of the driving motor and close to the inner side of the shell, the gear is located on the inner side of the shell, a gear ring used for driving the rotating cylinder to rotate is fixedly connected on the outer side of the rotating cylinder, and the gear is meshed with the gear ring. As a further description of the above technical solution: the supporting block is arranged in a triangular shape, and the inclined surface on the supporting block is arranged in an arc surface. As a further description of the above technical solution: the roller is made of rubber. As a further description of the above technical solution: The shell outside is provided with sealed lid, the shell outside is provided with spacing subassembly, spacing subassembly includes sliding connection is in the spacing ring of shell inner wall, spacing ring passes through compression spring elastic connection with the shell, compression spring's one end fixed connection is in the shell inner wall, compression spring's the other end fixed connection is in the spacing ring outside. As a further description of the above technical solution: One side of the limiting ring, which is close to the sealing cover, is fixedly connected with a limiting block for limiting the rotation of the sealing cover, a limiting groove for limiting the limiting block is formed in the outer side of the sealing cover, and the limiting block slides on the inner wall of the limiting groove. As a further description of the above technical solution: the outer side of the limiting block is provided with an arc surface. The utility model has the following beneficial effects: 1. According to the utility model, through the cooperation of the dredging